☯ TCM Properties
Directs Qi downward; Dispels melancholy; Removes toxicity
Traditional Chinese Uses
Gou Bao (Calculus Canis) is a rare bezoar, a gastric or biliary concretion formed in the domestic dog, and is used analogously to other animal bezoars such as ox bezoar (Niu Huang). Sweet and salty with a neutral nature, entering the Spleen, Stomach and Heart channels, it is described as directing rebellious Qi downward, resolving toxicity and dispersing clumps, and was traditionally said to relieve oppression of the spirit ('dispels melancholy').
Classical indications include reflux and vomiting with counterflow Qi, chest and epigastric masses and accumulations, throat and breast abscesses, and Heat-toxin swellings. Because the concretion forms only sporadically it has always been scarce and costly, so its use is chiefly of historical interest; it is an animal-derived substance given in very small amounts. Modern practice generally relies on more available Qi-descending and toxin-resolving herbs.
Botanical Description
Gou Bao is not a plant but a rare animal concretion: a bezoar or gastrolith formed in the stomach or biliary tract of the domestic dog, Canis lupus familiaris Linnaeus (family Canidae). The substance occurs sporadically and unpredictably in slaughtered or deceased dogs, where it appears as a rounded to ovoid stony mass, typically 1-3 cm across, with a yellow-brown to greyish-black surface, a hard but somewhat layered internal structure on section, and a faintly bitter or grassy taste. Genuine specimens are scarce and historically commanded a high price in the materia medica trade. The bezoar is collected at slaughter, washed, dried in the shade, and stored whole or pulverised for use. Its composition is variable, comprising organic and mineral concretions analogous to other animal bezoars.
Dosage
| Form | Amount | Frequency | Duration | Population | Notes |
|---|---|---|---|---|---|
| decoction | 3-9g | Daily | — | — | — |
This information is for educational purposes only and is not intended to replace professional medical advice. Always consult a qualified healthcare provider before using any herbal remedy, especially if you are pregnant, nursing, or taking medications.
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